A student is given two mineral samples that appear very similar. They both are opaque, white, and shiny. He knows that they are either calcite or quartz. To determine the identity of each mineral, the student puts a couple of drops of hydrochloric acid (HCl) on each sample. When calcite reacts with hydrochloric acid, carbon dioxide gas is produced. When HCl is placed on quartz, no changes are observed. Based on the information above, what evidence indicates that a chemical reaction occurs when HCl is placed on calcite?
Answer:
Carbon dioxide is a new product formed from the reaction between calcite and HCl
Explanation:
Calcite is a mineral with the chemical formula CaCO₃. Hydrochloric acid reacts with calcite to liberate carbon dioxide and form calcium chloride and water. The equation of the reaction is given below:
CaCO₃ + HCl ----> CaCl₂ + H₂O + CO₂
In a chemical reaction or change, new products are formed which are different from the original elements or compounds reacting.
Since the carbon dioxide gas, calcium chloride and water are entirely new products formed from calcite and hydrochloric acid, the reaction between calcite and HCl is a chemical reaction.
Answer:A
Explanation:
Carbon dioxide is a new substance created from the calcite and hydrochloric acid
Have you ever felt like you were worthless?
Answer:
yes sadly i have but i got my act together and moved on with my freaking life
Which of the following is an effect of sleep deprivation over time on the immune system?
A. A decreased amount id cytokines, making a person more susceptible to disease and infection B. An increase in stress hormones, causing a person’s risk of heart attack to increase C. An decrease amount of muscle mass, leading to obesity D. An increase in blood sugar levels, leading to a person become obese or developing diabetes
Answer:
The answer is A.
Explanation:
Hope it helps! <3
The effect of sleep deprivation over time on the immune system is that it decreases amount of cytokines, making a person more susceptible to disease and infection. That is option A.
What are cytokines?Cytokines are proteins of the immune system that controls the growth and activity of other immune system cells and blood cells.
The level of secretion of cytokines is affected by stress.
Sleep deprivation is a type of stress to the body which causes these immune proteins, cytokines, to decrease making a person more susceptible to disease and infection.
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Which statement is NOT true about emotional stress? A. Emotional stress can be caused by positive events. B. Emotional stress will disappear if you ignore it. C. Emotional stress can be caused by negative events. D. Emotional stress can make an individual physically ill.
Emotional stress will disappear if you ignore it is not true about emotional stress.
What is Emotional stress?
Stress, which is characterized as mental or emotional strain, is a sensation that affects far too many people.
The American Psychological Association (APA) reports that on a scale of 1 to 10, the average stress level for people in the United States in 2015 was 5.1. Both physical and mental symptoms can be brought on by excessive stress.
Diagnosed depression is characterized by a person's chronic and severe low mood, according to the Anxiety and Depression Association of America (ADAA).
Therefore, Emotional stress will disappear if you ignore it is not true about emotional stress.
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n
The alarm stage of Hans Selye's general adaptation syndrome is very similar to
A. the flight-or-fight response
B. constructive coping
C. catharsis
D. appraisal
Answer:
the flight or fight response
Explanation:
got it correct on edg, 100%
The alarm stage of Hans Selye's general adaptation syndrome is very similar to the flight-or-fight response, hence option A is correct.
What is the flight-or-fight response?The fight or flight response is a physiological response that occurs automatically in response to a stressful or frightful experience.
Threat perception engages the sympathetic nervous system, causing an acute stress reaction that primes the body for either fighting or running away.
Because your blood flow is being changed, you can feel chilled or notice that your hands and feet are damp and cold.
As your body's blood and hormones flow, your face could also seem flushed. The ability to feel sharp pain is impaired.
Therefore, the flight-or-fight response and alarm stage of Hans Selye's general adaptation syndrome is similar.
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An).
is anything that increases the chances of an unhealthy outcome.
A. risk factor
B. action plan
C. health continuum
D. habit
Answer:
I think its risk factor
Answer:
A.
Explanation:
Risk factor
9
Select the correct answer.
Which of the following is a medicine that stimulates the body's immune response to make disease-fighting molecules to attack a specific pathogen?
A.
analgesic
B.
antibiotic
C.
antitoxin
Reset Next
Post Test: Substance Abuse
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Answer:
Option C: Antitoxin is right
Explanation:
Which of the following is an uncontrollable risk factor that may affect physical activity throughout a person's life?
Family history
Lack of exercise
Poor diet
Tobacco use
baseball & soccer:
Match the definition with the correct term-
1.scoring a run
2.sacrifice bunt
3.passed ball, wild pitches and throwing errors
4.sacrifice flies
5.scoring position
6.fielder's choice
7.singles, doubles, triples, or homeruns
8.grand slam
9.walks
10.advancing the runners
11.stealing a base
_____a.when a catcher, pitcher or fielder makes an error and allows a runner to advance
_____b.when a batter hits a home run and there are runners on first, second, and third - which will score 4 runs total
______c.when a runner touches home plate
______d.types of hits in baseball or softball
______e.moving the runners from one base to the next
_____f.when the defense has a choice who to get out. A fielder may choose to get the runner going to third rather than the runner going to first.
_____g.when a runner tries to advance to the next base while the pitcher is throwing to a batter
______h.when a batter gets 4 balls thrown to him or her OR gets hit by a pitch
_____i.when a batter lays down a bunt to force the defense to throw to first base, allowing another runner on base to advance to the next base into scoring position
_____j.when a runner is on second or third and could get to home plate if the ball is hit hard or fast enough
______k.when a batter hits the ball into the air, a runner that is on base can legally try to go to the next base, but only after the ball has been caught by the fielder
Answer:
nobody knows
Explanation:
this is the PowerPoint check the work I just uploaded and help answer the questions from here plsss
Answer:
sorry i am not understand your questions sorry
Which show is better?
(A)13 Reasons Why (B)Black Lighting (C)Stranger Things (D)Riverdale
Just to point out... yall don't have to answer
Answer:
C
Explanation:
Answer:
For me Stranger Things has to be the best show
Explanation:
Because it's really fascinating and the Demogorgon looks really cool even if it's not for kids or anything it's just really intriguing to watch. And the characters have so much personality and are really smart and I also feel bad that Hopper died. So C. And also Riverdale is a good show too I won't lie.
write the meaning of migration. how does it impact population? describe in short.
Answer:
Migration is the movement of people from one permanent home to another. This movement changes the population of a place. International migration is the movement from one country to another.
The population of any given area can only change through three processes: birth, death and migration. Health departments at the state and local levels keep fairly complete records of births and deaths, but information on gross migration flow—in or out—is practically non-existent. The net effect of migration on population size can be reasonably approximated, however, from census counts and vital statistics. Using data provided by the Indiana State Department of Health, along with 1990 and 2000 census counts, the Indiana Business Research Center estimates that net migration, the difference between inflows and outflows, accounted for 216,000 new state residents in the 1990s—40 percent of Indiana's total population increase for the decade.
I hope it helps you..
This is all in my book....
After an emergency surgery, a nurse counts all the supplies and notices that a sponge is missing. The surgeon asks the
nurse if she removed the sponge, and she replies that she thinks the surgeon removed it. Nobody on the team can
account for the missing sponge. What best describes this scenario?
good communication between the team
an undesirable outcome caused by poor teamwork
a negative effect of good teamwork
a positive outcome caused by good teamwork
Answer:
The setting is the hospital, and it appears that there are nurses trying to remove an important body part.
Answer:
B: An undesired outcome caused by poor teamwork
Explanation:
QUESTION 4
11. Health care records belong to the patient since they are paying for care.
OO
True
False
i have to get rid of my dog i was wondory if someone is instrasted
YORKIE MIXED WITH A CHIWAWA
YEAR OLD
Answer:
Explanation:
I have a chorkie too!!! Hes thought to be a pure bread chihuahua but we think there's a little yorkshire in him:) his name is bear!!
I'm interested, as long as he/she free
Memory, problem solving, and multitasking are all functions of the________lobe.
A. temporal
B. occipital
C. frontal
D. parietal
Answer:
C. frontal
Explanation:
The frontal lobe controls our cognitive skills, like memory, problem solving, multitasking, language, and emotion.
Answer:
C. Frontal
Explanation:
In the United States, the onset of puberty has been occurring earlier and earlier. Today, about 10 percent of children ages 6 or 7 begin developing signs of puberty, a condition known as precocious puberty.
In the early 1900s, girls typically began menstruating at age 17. Today, girls typically begin around age 12. This trend has been attributed to the growing number of overweight children and a greater exposure to pollutants. Exposure to phthalates, artificial chemicals found in plastics, has also been cited as a cause. These chemicals disrupt the endocrine system by mimicking hormones in the body.
Early puberty can have many negative side effects, including an increased risk of certain types of cancer, such as breast cancer. Children are often emotionally unprepared for the physical changes taking place in their bodies. As a result, behavioral and psychological problems may increase.
According to the text, what are the likely causes of precocious puberty? Check all that apply.
exposure to pollutants
exposure to phthalates
certain types of cancers
unhealthy weight gain
disruptions to the endocrine system
emotional and psychological problems
Answer:
exposure to pollutants (Correct)exposure to phthalates (Correct)certain types of cancers (Wrong)
unhealthy weight gain (Correct)disruptions to the endocrine system (Correct)emotional and psychological problem (Wong)
Explanation:
So it's basically:
A
B
D
E
Agriculture is still a significant aspect of the economy of Los Angeles.
Answer:
True
Explanation:
Los Angeles County still makes a contribution to the Golden State's vast farm productivity. L.A. County farm production ranked thirty-second among fifty-eight California counties in 2013, with crops including alfalfa, carrots, and peaches, along with nursery crops.
There is a small fire at the library in a children’s hospital. What should the hospital staff do first?
Answer:
evacuate
Explanation:
they should evacuate first
Answer:
Evacote the children
Explanation:
The ________ is located between the forebrain and hindbrain.
A. anteriorbrain
B. midbrain
C. posteriorbrain
D. brainstem
Answer:
B. ( Midbrain)
Explanation:
Why is it important to get a resting respiratory rate as a vital sign rather than a rate while a person is active?
Answer:
Why is it important to get a resting respiratory rate as a vital sign rather than a rate while a person is active?
Well, because it shows your heart is actually resting.
Answer:
This is an important thing because this resting respiratory rate shows your body is resting, especially your lungs.
Hope this helps!
how to deal with a break up :(
Answer:
well start taking care about your self and talk to someone about it
What is the difference between prescription medicines, nonprescription medicines, and illegal substances. What is their abuse?
Answer:
Prescription drugs are prescribed by a doctor and intended to be used by a specific person that the prescription is for, while over-the-counter drugs are not. The FDA regulates the OTC drugs through monographs. Monographs cover acceptable ingredients, doses, formulations, and labeling.
100% on edge:)
Explanation:
Answer:
Prescription drugs are prescribed by a doctor and intended to be used by a specific person that the prescription is for, while over-the-counter drugs are not. The FDA regulates the OTC drugs through monographs. Monographs cover acceptable ingredients, doses, formulations, and labeling.
Explanation:
list 3 ways to reduce the risk of injuries from falls in your home
Answer:
Clean up clutter Install grab handles or bar railsRepair or remove tripping hazardsExplanation:
Which of the following are true about myocardial infarctions? Select all that apply.
can cause cardiac arrest
can cause vomiting or headaches
can cause the heart to beat erratically
can damage the heart
Answer:
can cause cardiac arrest
can cause the heart to beat erratically
can damage the heart
Explanation:
just got it right on edge2020
Answer:
A,C,D
Explanation:
Horatio was born with malfunctioning kidneys. Which homeostatic disorder is he at most risk for?
type 2 diabetes
narcolepsy
metabolic acidosis
hyperthermia
Horatio is may be suffering from Metabolic acidosis.
What is metabolic acidosis?Metabolic acidosis is a condition in which the body's fluids contain too much acid.When the body produces too much acid, metabolic acidosis occurs. It can also happen if the kidneys are unable to excrete enough acid from the body.Causes of Metabolic acidosis:-Diabetic acidosis (also known as diabetic ketoacidosis or DKA) occurs when acidic molecules called ketone bodies accumulate due to uncontrolled diabetes.
The removal of too much sodium bicarbonate from the body, as can happen with severe diarrhoea, causes hyperchloremic acidosis.Kidney disease is a condition that affects the kidneys (uremia, distal renal tubular acidosis or proximal renal tubular acidosis).Lactic acidosis is a condition in which the body produces too much lactate.Aspirin, ethylene glycol (found in antifreeze), or methanol poisoning.Dehydration is a serious problem.Hence the correct option is C.
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What is a calorie?
ik im stupid lol
Answer:The calorie is a unit of energy widely used in nutrition. For historical reasons, two main definitions of calorie are in wide use. The small calorie or gram calorie is the amount of heat energy needed to raise the temperature of one gram of water by one degree Celsius.
Explanation: hope it helps
Answer:
The calorie is a unit of energy widely used in nutrition. For historical reasons, two main definitions of calorie are in wide use. The small calorie or gram calorie is the amount of heat energy needed to raise the temperature of one gram of water by one degree Celsius.
If you want to make healthy choices, you need to A. learn about your body B. discuss your health with a doctor C. have a medical examination
Answer:
I am 99% sure the answer is A-learn about your body
Explanation:
I hope this helps, can i plz have brainliest
what is the pathway for co2 in our respiratory system?
Answer:
alveoli
Explanation:
because carbon dioxide moves from the blood in the capillaries to the air in the alveoli
A hospital administrator emailed an agenda to all the staff employees for an upcoming meeting. The agenda listed the
points below.
-Discuss the change in policy for dealing with patient privacy rights.
-Discuss the possible solutions to overcrowding in the waiting rooms.
-Discuss possible fundraising ideas for the purchase of a spectrophotometer.
What part of the meeting is being effectively communicated to staff members?
the timeliness of the meeting
the objectives of the meeting
the meeting minutes
the administrator's negotiation skills
Answer:
I think its B: the objectives of the meeting
Explanation:
Meeting objectives are being communicated effectively to staff members. So, the correct option is (B).
What is Meeting?A meeting is defined as when two or more people come together to discuss one or more topics which often in a formal or business setting, but meetings also occur in many other environments. These can be used in the form of group decision making.
Some important points to remember in a meeting which are as follows:
A clear agenda and objectiveA pared-down list of participantsA point person or moderatorA device policyActionable next stepsThese provide a valuable forum for a range of different functions that help people share ideas, make decisions, build team relationships and even feel less lonely at work.
Thus, Meeting objectives are being communicated effectively to staff members. So, the correct option is (B).
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